Carrier WeatherMaster Series Installation Instructions Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500208-01 Printed in U.S.A. Form 50HC-7-12-07SI Pg 1 11-18 Replaces: 50HC-7-12-06SIInstallation InstructionsTABLE OF CONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2MODEL NUMBER NOMENCLATUREAND DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 2INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Jobsite Survey. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . . 8• ROOF MOUNTStep 2 — Plan for Sequence of Unit Installation . .9• CURB-MOUNTED INSTALLATION• PAD-MOUNTED INSTALLATION• FRAME-MOUNTED INSTALLATIONStep 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . 9Step 4 — Provide Unit Support . . . . . . . . . . . . . . . . . 9• ROOF CURB MOUNT• SLAB MOUNT (HORIZONTAL UNITS ONLY)• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB ORSLAB MOUNT)Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . 11• UNITS WITH ACCESSORY OR OPTIONALELECTRIC HEATERSStep 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . 11• POSITIONING ON CURBStep 7 — Convert to Horizontal and ConnectDuctwork (When Required) . . . . . . . . . . . . . . . . . . . 12Step 8 — Install Outside Air Hood . . . . . . . . . . . . . 13• ECONOMIZER AND TWO POSITION DAMPERHOOD PACKAGE REMOVAL AND SETUP —FACTORY OPTION• ECONOMIZER HOOD AND TWO-POSITION HOODStep 9 — Install External Condensate Trapand Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Step 10 — Make Electrical Connections. . . . . . . . 15• FIELD POWER SUPPLY• UNITS WITH FACTORY-INSTALLED NON-FUSEDDISCONNECT OR HACR• UNITS WITHOUT FACTORY-INSTALLED NON-FUSED DISCONNECT OR HACR• ALL UNITSPage• CONVENIENCE OUTLETS• HACR AMP RATING• FACTORY-OPTION THRU-BASE CONNECTIONS• UNITS WITHOUT THRU-BASE CONNECTIONS• FIELD CONTROL WIRING• THERMOSTAT• ELECTRIC HEATERS• HUMIDI-MIZER ® CONTROL CONNECTIONS• TYPICAL CONTROL AND POWER WIRINGDIAGRAMSEconomi$er ® X (Factory Option) . . . . . . . . . . . . . . 33• INTERFACE OVERVIEW• SEQUENCE OF OPERATION• ENTHALPY SETTINGS• TWO-SPEED FAN OPERATION• CHECKOUT• TROUBLESHOOTINGSmoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47• COMPLETING INSTALLATION OF RETURN AIRSMOKE SENSOR• ADDITIONAL APPLICATION DATAStaged Air Volume (SAV™) with VariableFrequency Drive (Factory-Installed Option) . . . . . 48ComfortLink (Factory-Installed Option). . . . . . . . . 48PremierLink™ Controller (Factory Option) . . . . . . 48RTU Open Controller System . . . . . . . . . . . . . . . . . . 48Controller Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48• LOW AMBIENT CONTROL (FACTORY OPTION)Step 11 — Adjust Factory-Installed Options . . . . 48• SMOKE DETECTORS• ECONOMI$ER ® IV OCCUPANCY SWITCHStep 12 — Install Accessories . . . . . . . . . . . . . . . . . 49Step 13 — Check Belt Tension. . . . . . . . . . . . . . . . . 49• BELT FORCE — DEFLECTION METHOD• BELT TENSION METHODUltraTech™ Compressor(50HC07 Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . 49Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . . 50START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . CL-150HC07-12 WeatherMaster ® SeriesSingle Package RooftopCooling Only with Puron® (R-410-A) Refrigerant